Strange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeV

dc.WoS.categoriesPhysics, Nuclearen_US
dc.authorid0000-0001-5050-8441en_US
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2020-11-12T13:12:46Z
dc.date.available2020-11-12T13:12:46Z
dc.date.issued2020-06-22
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description21 pagesen_US
dc.description.abstractThe transverse momentum (pT) distributions of Lambda, Xi(-), and Omega(-) baryons, their antiparticles, and K-S(0) mesons are measured in proton-proton (pp) and proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV over a broad rapidity range. The data, corresponding to integrated luminosities of 40.2 nb(-1) and 15.6 mu b(-1) for pp and pPb collisions, respectively, were collected by the CMS experiment. The nuclear modification factor R-pPb, which is defined as the ratio of the particle yield in pPb collisions and a scaled pp reference, is measured for each particle. A strong dependence on particle species is observed in the pT range from 2 to 7 GeV, where R-pPb for K-S(0) is consistent with unity, while an enhancement ordered by strangeness content and/or particle mass is observed for the three baryons. In pPb collisions, the strange hadron production is asymmetric about the nucleon-nucleon center-of-mass rapidity. Enhancements, which depend on the particle type, are observed in the direction of the Pb beam. The results are compared with predictions from EPOS LHC, which includes parametrized radial flow. The model is in qualitative agreement with the R-pPb data, but fails to describe the dependence on particle species in the yield asymmetries measured away from midrapidity in pPb collisions.en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1103/PhysRevC.101.064906en_US
dc.identifier.issn1089-490X
dc.identifier.issn0556-2813
dc.identifier.urihttps://hdl.handle.net/11411/2629
dc.identifier.urihttps://doi.org/10.1103/PhysRevC.101.064906
dc.identifier.wosWOS:000541703200002en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.issue6en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors1000+en_US
dc.publisherAmer Physical Soc.en_US
dc.relation.ispartofPhysical Review Cen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectTransverse-Momentumen_US
dc.subjectParticle-productionen_US
dc.subjectMultiplicityen_US
dc.subjectCentrality dependenceen_US
dc.subjectNuclear modificationen_US
dc.subjectPb Collisionsen_US
dc.subjectRoot-(SNN)=200 GEVen_US
dc.titleStrange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeVen_US
dc.typeArticleen_US
dc.volume101en_US

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